A123003 - OEIS

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A123003

G.f.: (8-29*x+24*x^2)/((1-4*x)*(1-3*x)*(1-2*x)^2*(1-x)^2).

8, 75, 463, 2394, 11274, 50265, 216581, 912648, 3788560, 15565095, 63484779, 257591862, 1041276566, 4197718965, 16888451857, 67845945636, 272258886492, 1091657974275, 4374492890615, 17521540911570, 70156842333538, 280839342481425, 1123993155149853 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	LINKS	`E. Rodney Canfield and Herbert S. Wilf, Counting permutations by their runs up and down [See u_4.]`
	CROSSREFS	`Cf. A059427, A000352, A060158.` `Sequence in context: A116251 A166084 A123661 * A015578 A145600 A094735` `Adjacent sequences: A123000 A123001 A123002 * A123004 A123005 A123006`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 09 2006`

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.